Hey Thomas,

Thanks for the idea, only issue is that I am having a hard time following what you really want. (My brain is scrambled between what you mean between attribute / value / configuration file.)

Could you provide a simplified code example of what you have to do now and how you would like it to behave?

Much appreciated!

Ok, I'll try to explain it a bit better. I hope that I can do that, I'm not English native. :)

First I try initialize a new Box instance by getting - lets say - default values from a configuration file:

>>> config = Box.from_yaml('/path/to/my/default/config.yml')
>>> print(config)
{'key1':'value1','key2':'value2', ...}

Then, further on, I'd like to load additional values from another configuration file, maybe for a plugin. Of course, I could to that by reading the additional values to its own Box instance and update the first one:

>>> config2 = Box.from_yaml('/path/to/my/plugin/config.yml')
>>> print(config2)
{'foo':'bar', 'baz':'gus', ...}
>>> config.update(config2)
>>> print(config)
{'key1': 'value1', 'key2': 'value2', 'foo': 'bar', 'baz': 'gus'}

The main idea behind my feature request now is to skip creating an additional instance and load the additional values directly to the first instance:

>>> config.additional_values_from_yaml('/path/to/my/plugin/config.yml')  # name of function picked randomly :)
>>> print(config)
{'key1': 'value1', 'key2': 'value2', 'foo': 'bar', 'baz': 'gus'}

Configuration files are just an example, I deal a lot of it with them.

I hope it's now clear what I mean. :)

Regards, Thomas

please checkout dynaconf which uses this project for their configuration storage

https://www.dynaconf.com/